I believe that people will buy silver items for definite reasons:
either they do not like the yellow color of gold against their skin
tones, or the actual design of the piece “speaks” to them. Both of
these theories can be flipped to explain why people will select a
gold item - but that doesn’t make either theory any less relevant.
I think another - and, frankly, more important - reason some people
will select silver is purely one of finances. We know that silver is
significantly less expensive than gold - and the notion of “real"
silver is usually more appealing to a client than “real” gold filled
or gold plated - which, frankly, is somewhat of a substitute for
"real” anything. So, if the only “real” quality they can afford is
silver, that will be a major influence on their selection.
Personally, I think a designer/artist can make more money from
working in silver because the intial outlay is much less expensive
than gold AND if your designs are unique and appealing your mark up
can be significant - thereby increasing your profit margin.